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          <h2>thinkphp header超大文件下载出错</h2>
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      <div class="detail-bd"> 最近要做一个超大文件下载的,由于文件不在web服务器目录下,所以采用header的方式下载,但每次下载的文件大小跟源文件一致,而文件的MD5已经
        改变,把同样的下载函数放到TP框架外面执行却可以正常下载,这是为什么?小白求教,已经困惑好几天了,或者有性能更好的下载方式吗?无限感激好心大神 </div>
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